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(11)

EP 1 068 181 A1

(12)

(43) Date of publication: 17.01.2001 Bulletin 2001/03 (21) Application number: 99901983.9 (22) Date of filing: 04.02.1999

(51) International Patent Classification (IPC)7: C07C 403/20, C07C 403/18, A61K 7/48 (86) International application number: PCT/KR9900/056 (87) International publication number: WO 9950/240 (07.10.1999 Gazette 1999/40)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 30.03.1998 KR 9811079 (71) Applicant: LG CHEMICAL LIMITED Seoul 150-010 (KR)

(72) Inventors: CHUNG, Bong, Youl Youseong-kuTaejeon 305-345 (KR) KIM, Young, KeunLG Chemical Dormitory Taejeon 305-340 (KR) LEE, In, Sang Youseong-guTaejeon 305-340 (KR) PARK, Bong, Jun Seo-guTaejeon 305-340 (KR) CHO, Wan, Goo Jeonmin-dongYouseong-guTaejeon 305-390 (KR) SONG, Young, Sook Youseong-guTaejeon 305-751 (KR) PARK, Mun, Eok Youseong-guTaejeon 305-343 (KR) KIM, Young, Deuk Youseong-guTaejeon 305-343 (KR) LEE, Sung, Jun Youseong-guTaejeon 305-390 (KR) (74) Representative: Kaiser, Jürgen, Dr.rer.nat.Dipl.-Chem. et al Winter, Brandl, Fürniss, Hübner,Röss, Kaiser, PoltePartnerschaftPatent- und RechtsanwaltskanzleiAlois-Steinecker-Strasse 22 85354 Freising 85354 Freising (DE)